A hundred thousand years passed in the blink of an eye.
The group of demon gods in the Giant Ax Arena exhausted all their efforts, yet they still couldn't defeat a single puppet shadow. These puppet shadows were simply too powerful.
Not only did they possess the exact same power and Magic Treasures as the demon gods themselves, but they also had immense computational abilities. As the demon gods improved, the puppets did as well.
To defeat these puppet shadows, one would have to surpass the limits of their computing power.
Unfortunately, none of them could exceed their own limits.
Even so, after a hundred thousand years of relentless combat, their strength had advanced by leaps and bounds. They were now far stronger than before, and had improved in every aspect.
At this moment, Gu Chuan was nearing the completion of refining the Chaos Tower.
Rumble~~
Suddenly, near the Giant Ax Arena, a colossal black tower rose from the ground, soaring into the sky. It was incomparably majestic, standing as the tallest structure in Chaos City.
With a diameter exceeding ten thousand light-years, the tower was engraved with densely packed chaotic runes, radiating an overwhelming aura. At least 180 million Restriction Formations covered its surface, intertwining to create terrifying offensive and defensive capabilities.
The moment this towering black monolith emerged, it seemed to suppress Chaos itself, causing time and space to stagnate.
The entire Chaos City trembled. The boundless Restrictions lit up with divine brilliance, activating an absolute air prohibition—no demon god could fly near the tower; they could only approach it by foot.
Clatter~~~
At the heart of the Chaos Tower, a vortex of chaotic energy took form, continuously devouring the vast expanse of the Chaos Void and pouring it into the tower's depths.
In that instant, the Chaos Tower and Chaos City became one, inseparable, their essences intertwined.
"What happened?! What in the heavens is going on?!"
The earth-shattering phenomenon instantly drew the attention of countless Chaos Demon Gods. Even the dullest of beings could sense the magnitude of this event.
"A tower… A tower has risen from the ground!"
One demon god pointed in astonishment at the massive black tower now standing at the heart of Chaos City. It was an unprecedented sight—colossal, boundless, towering into the heavens with no visible end.
"What a terrifying tower… I can sense the infinite power of its Restriction Formations. It seems to hold supreme authority over chaotic time and space."
Many demon gods gasped in shock. The aura radiating from the Chaos Tower was suffocating. Strands of chaotic energy drifted from it, and even a single wisp seemed capable of shattering the skies and obliterating the vacuum of space.
Simply standing before the tower left them struggling to breathe.
"It must be the work of the Lord of Chaos City!"
"Has the Chaos City Lord once again done something earth-shattering?"
The demon gods instinctively thought of the Chaos City Lord, for he was the only being in Chaos City capable of creating such a miracle. No other demon god had the qualifications to attempt something of this scale.
Excitement surged within them. Everything the Chaos City Lord had created before had left an indelible mark upon history.
The Giant Ax Arena, for example, had become the most thriving battlefield in all of Chaos. Countless demon gods and beings of all kinds came there to fight and test their limits. Each battle had turned into a grand spectacle—an event worthy of legend.
The Chaos Library was another such marvel, now revered as a sacred land by countless demon gods. Within it were stored untold supernatural techniques, cultivation methods, and even divine scriptures. With enough resources, one could exchange for anything they desired.
And now, this Chaos Tower had appeared. Given the Chaos City Lord's past endeavors, there was no doubt—this tower would change the fate of Chaos City itself.
But what exactly was its purpose?
For now, they could only speculate.
At this moment, Pangu and Gu Chuan stood side by side at the base of the Chaos Tower.
"So this is the trial site you've spent a hundred thousand years building?" Pangu asked, his eyes filled with curiosity.
"That's right," Gu Chuan nodded. "The materials used to construct this Chaos Tower came from the resources you provided—Life Stone, Soul Stone, Fetish Stone, Sky Crystal Stone, Chaos Stone Essence, and many others.
"It contains a total of 129,600 floors. Each floor is as vast as dozens—if not hundreds—of Great Thousand Worlds. Within the tower, there exist countless worlds, each brimming with powerful foes.
"The moment one enters, they will be besieged by countless demon gods or powerful entities of various races. Only by overcoming these adversaries can they ascend to the next level.
"The higher one climbs, the stronger the enemies become. By the thousandth floor, only those who have comprehended at least one Dao and become a Demon God of the Dao can continue their ascent.
"And if someone manages to reach the very peak of the Chaos Tower, they will have mastered 108 Daos and attained a power surpassing even my own."
Gu Chuan's voice was calm, yet every word carried boundless weight.
"So, if one reaches the summit of the Chaos Tower, they will surpass even you, fellow Daoist Gu Chuan?"
Pangu's eyes gleamed with excitement as a powerful urge to challenge the tower surged within him.
"That's right. As long as one climbs to the top, they will surpass me."
Gu Chuan smiled. The Chaos Tower was the culmination of all his knowledge and power. It was a creation forged through the synthesis of countless divine abilities and spells—his ultimate masterpiece.
In truth, every monster within the tower was a manifestation of his supernatural abilities, ranging from weak to overwhelmingly strong.
And the true terror of the Chaos Tower lay in this:
Each creature inside was immortal. Even if a challenger managed to slay them, they would be resurrected at the break of dawn, fully restored. No matter how fiercely one fought, the monsters within the tower would never be truly eradicated.
Furthermore, these supernatural entities were crafted based on information provided by Zero, incorporating vast knowledge of the Chaos Demon Gods and the structure of the chaos itself.
Thus, they bore an eerie resemblance to the real demon gods of the Chaos World—perhaps even surpassing them in power.
To fight them was no different than battling true demon gods.
And at the very peak of the tower, a challenger would face Gu Chuan's strongest supernatural ability—an entity equivalent to his own clone.
That was why Gu Chuan declared:
"If a demon god can reach the top of the Chaos Tower, it means they have defeated me."